diff --git a/docs/plan/#32-health-query/checklist.md b/docs/plan/#32-health-query/checklist.md
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+# GraphQL _health 쿼리 검증 체크리스트
+
+## 필수 항목
+- [x] 아키텍처 원칙 준수 (docs/architecture.md 기준)
+- [x] 레이어 의존성 규칙 위반 없음
+- [x] 모든 테스트 통과
+- [x] 기존 테스트 깨지지 않음
+
+## 선택 항목
+- [ ] API 엔드포인트 동작 확인
diff --git a/docs/plan/#32-health-query/plan.md b/docs/plan/#32-health-query/plan.md
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+# GraphQL _health 쿼리 DataFetcher 구현
+
+> Issue: #32
+
+## 단계
+
+- [x] 1단계: health BC 패키지 및 DataFetcher 생성
+- [x] 2단계: 테스트 통과 및 검증
diff --git a/src/main/kotlin/kr/io/team/loop/health/presentation/datafetcher/HealthDataFetcher.kt b/src/main/kotlin/kr/io/team/loop/health/presentation/datafetcher/HealthDataFetcher.kt
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+package kr.io.team.loop.health.presentation.datafetcher
+
+import com.netflix.graphql.dgs.DgsComponent
+import com.netflix.graphql.dgs.DgsQuery
+
+@DgsComponent
+class HealthDataFetcher {
+    @DgsQuery(field = "_health")
+    fun health(): Boolean = true
+}